convulsion

The definition of a convulsion is a violent uncontrolled body shake, commotion or laughing fit.

(noun)

An example of a convulsion is an epileptic siezure.
An example of a convulsion is an earthquake.
An example of a convulsion is someone laughing to the point of rolling on the floor and having to catch their breath.

See convulsion in Webster's New World College Dictionary

noun

Origin: L convulsio < convulsus: see convulse

Related Forms:

See convulsion in American Heritage Dictionary 4

noun

An intense, paroxysmal, involuntary muscular contraction.
An uncontrolled fit, as of laughter; a paroxysm.
Violent turmoil: “The market convulsions of the last few weeks have shaken the world” (Felix Rohatyn).

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